CN112096295B - Combined PDC drill bit for drilling and using method thereof - Google Patents
Combined PDC drill bit for drilling and using method thereof Download PDFInfo
- Publication number
- CN112096295B CN112096295B CN202011235915.2A CN202011235915A CN112096295B CN 112096295 B CN112096295 B CN 112096295B CN 202011235915 A CN202011235915 A CN 202011235915A CN 112096295 B CN112096295 B CN 112096295B
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- pipe
- drill bit
- groove
- fixedly connected
- steel body
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B10/00—Drill bits
- E21B10/42—Rotary drag type drill bits with teeth, blades or like cutting elements, e.g. fork-type bits, fish tail bits
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B10/00—Drill bits
- E21B10/02—Core bits
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B10/00—Drill bits
- E21B10/46—Drill bits characterised by wear resisting parts, e.g. diamond inserts
- E21B10/54—Drill bits characterised by wear resisting parts, e.g. diamond inserts the bit being of the rotary drag type, e.g. fork-type bits
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B10/00—Drill bits
- E21B10/60—Drill bits characterised by conduits or nozzles for drilling fluids
- E21B10/602—Drill bits characterised by conduits or nozzles for drilling fluids the bit being a rotary drag type bit with blades
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B25/00—Apparatus for obtaining or removing undisturbed cores, e.g. core barrels, core extractors
- E21B25/10—Formed core retaining or severing means
Abstract
The invention discloses a combined PDC drill bit for drilling and a using method thereof, and relates to the technical field of oil exploitation equipment. The drill bit steel body in this device is provided with protruding piece and embedded groove with the junction of coring pipe to can prevent when digging a well, the problem that misplaces or skid appears between two sets of components, the inside of coring pipe and drill bit steel body is separated through separating a section of thick bamboo, separates into the inside region and gets core region and flowing water region, and the position that the section of thick bamboo is connected in coring pipe and the drill bit steel body is provided with the reducing and separates a section of thick bamboo, can increase the regional leakproofness of flowing water.
Description
Technical Field
The invention relates to the technical field of oil exploitation equipment, in particular to a combined PDC drill bit for drilling and a using method thereof.
Background
Core drilling is a commonly used exploration means for geological exploration of solid minerals. The cylindrical drill bit and the drilling tool are used for circularly crushing rock at the bottom of a hole along the circumference, a cylindrical rock core is reserved at the center part of the bottom of the hole, the rock core is taken out from the hole to research the conditions of geology and mineral products, in oil drilling, the drill bit for drilling the rock core is used for custom weighing of the core drill bit, the types of the core drill bits are various, the structural difference is large, generally, the cone core drill bit, the scraper core drill bit and the cylindrical core drill bit directly influence the rock core taking rate, the application range of the diamond drill bit is wide, the diamond drill bit can drill various strata with rock-soil drillability of 1-12 grades, the drilling efficiency is high, the drilling quality is good, the manufacturing process of the drill bit is complex, the cost is high, the operation technical requirement is high, the diamond drill bit consists of three parts, a matrix and a drill bit body, and.
The Chinese patent discloses a combined PDC drill bit for drilling (publication number: CN 105756564B), which comprises a drill bit base body, wherein gauge teeth, long blades and short blades are arranged on the drill bit base body, the long blades and the short blades are arranged at intervals, a first through hole for a rock core to enter during drilling is arranged in the central area of the drill bit base body, a breaking through hole and a second through hole are also arranged on the drill bit base body, and two ends of the breaking through hole are respectively communicated with the first through hole and the second through hole; an inclination angle is formed between the broken through hole and the first through hole; the long blade is distributed with large-diameter PDC cutting teeth, the short blade is distributed with small-diameter PDC cutting teeth, and the long blade can reciprocate along the axial direction of the drill bit base body.
The rock core inside the existing drill bit is inconvenient to take out after sampling, so that the working efficiency is low, and meanwhile, the assembling capacity of the drill bit is weak, so that the drill bit is inconvenient to install and transport.
Disclosure of Invention
In order to overcome the technical problems that after the existing drill bit is used for sampling, the rock core in the existing drill bit is inconvenient to take out, so that the working efficiency is low, and meanwhile, the drill bit is inconvenient to install and transport due to the fact that the assembling capacity of the drill bit is weak, the invention aims to provide the combined PDC drill bit for drilling.
The purpose of the invention can be realized by the following technical scheme:
a combined PDC drill bit for drilling comprises a drill bit steel body, wherein a plurality of fins are fixedly connected to the bottom end of the side face of the drill bit steel body, chip grooves are formed between every two adjacent fins, and the side surfaces of the fins are fixedly connected with diamond composite sheets, the top end of the drill bit steel body is provided with a core taking pipe, the top end of the side surface of the core taking pipe is fixedly connected with a side ring, the top end of the core taking pipe is in threaded connection with a threaded sleeve, the side surface of the core taking pipe close to the lower side of the side ring is provided with a plurality of slag discharging ports communicated with the inner cavity, the bottom end of the threaded sleeve is tightly attached to the upper side of the side ring, the outer surface of the threaded sleeve is fixedly connected with a reinforcing frame, the upper surface of the reinforcing frame is fixedly connected with a supporting frame, the interior of the supporting frame is connected with a material pushing pipe in a sliding way, the bottom end of the material pushing pipe extends to the inside of the core taking pipe, and one side of the supporting frame is rotatably connected with a rotator used for pushing the material pushing pipe to move along the inside of the core taking pipe;
the circular slot has been seted up to the inside of the drill bit steel body, and the inside fixedly connected with of circular slot separates a section of thick bamboo first, it is first to separate to be formed with the tye between a section of thick bamboo and the circular slot, and first separates a section of thick bamboo inside and be formed with core taking groove, the feed chute of a plurality of and outside intercommunication is seted up to the inside of drill bit steel body bottom, and the inside one side that is close to the feed chute of drill bit steel body bottom has seted up a plurality of out the basin, the upper end of feed chute and play basin respectively with core taking groove and tye intercommunication, the bottom welding of going out the basin has at a distance from the.
As a further scheme of the invention: the last fixed surface of the drill bit steel body is connected with the connecting pipe, the inside structure of connecting pipe is the same with the inside structure of circular slot, and a plurality of screw hole has all been seted up to the side of connecting pipe and coring pipe, through connecting bolt threaded connection between the screw hole of coring pipe and connecting pipe, the protruding piece of side fixedly connected with a plurality of on drill bit steel body top, a plurality of embedded groove has been seted up to the bottom of coring pipe side, protruding piece embedding is in the inside of embedded groove, and closely laminates between protruding piece and the embedded groove.
As a further scheme of the invention: get the intraduct bottom of core and seted up the reducing groove, the connecting pipe embedding is in the inside in reducing groove, and the side of connecting pipe closely laminates with the inner wall in reducing groove, it is fixed with the second at a distance from a section of thick bamboo to get the inside upside that the reducing groove is close to of core intraduct, the second separates a bottom fixedly connected with reducing of a section of thick bamboo and separates a section of thick bamboo, the reducing separates a section of thick bamboo embedding in the inside of flowing water groove, the second separates a bottom and the first top that separates a section of thick bamboo and closely laminates, the reducing separates a side and the first inner wall that separates a section of thick bamboo and.
As a further scheme of the invention: the support frame includes the base plate, the inside fixedly connected with reinforcement pipe of base plate, and the base plate has seted up the mounting groove near one side of reinforcement pipe, reinforcement pipe has seted up the opening towards one side of mounting groove, mounting groove and opening intercommunication.
As a further scheme of the invention: the rotating device comprises a connecting gear and a linkage rod, the connecting gear is rotatably connected inside the mounting groove, the linkage rod is rotatably connected with the substrate, one end of the linkage rod is fixedly connected with the connecting gear, the other end of the linkage rod extends to the outer side of the substrate, the linkage rod is fixedly connected with a rotating handle at one end of the outer side of the substrate, and the side of the rotating handle is rotatably connected with a side handle.
As a further scheme of the invention: the material pushing pipe comprises a group of first assembling pipes and a plurality of groups of second assembling pipes, side connecting teeth are fixedly arranged on the side faces of the first assembling pipes and the side faces of the second assembling pipes, the width of the side handle is smaller than the width of the mounting groove and the opening, and the connecting gear is meshed with the side connecting teeth.
As a further scheme of the invention: the bottom fixedly connected with push pedal of first assembly pipe, and the protruding pipe of top fixedly connected with of first assembly pipe and second assembly pipe, the equal fixedly connected with grip block in both sides of protruding pipe, the grip block distributes at the side slope of protruding pipe, the groove has been seted up and has been accomodate to the bottom of second assembly pipe, accomodate the equal fixedly connected with connecting block in both sides of inslot portion.
As a further scheme of the invention: the feed chute consists of two groups of inner chutes, and the included angle between the two groups of inner chutes is 120-160 degrees.
As a further scheme of the invention: the core taking pipe is formed by connecting a plurality of pipelines in a threaded manner.
As a further scheme of the invention: the use method of the drill bit comprises the following steps: sleeving the coring pipe on the upper side of the drill bit steel body, embedding the convex block of the drill bit steel body into an embedding groove of the coring pipe when sleeving, then fixing the drill bit steel body and the coring pipe through a threaded hole by using a connecting bolt, after fixing is completed, attaching the side surface of the connecting pipe to the inner wall of a reducing groove in the coring pipe, simultaneously embedding a reducing partition cylinder into a water flowing groove, sealing the connecting part of a first partition cylinder and a second partition cylinder by the reducing partition cylinder, connecting a connector to the top end of the coring pipe in a threaded manner, and assembling the connector and the output end of a driving device;
during drilling, broken rock soil enters the interior of the drill bit from the feeding groove, the rock soil is further broken when passing through the bent part of the feeding groove, the rock soil is accumulated in the coring groove after passing through the feeding groove and is jacked up to enter the coring pipe along with the advance of the drill bit, and finally the broken rock soil is discharged out of the drill bit and the pipeline from the slag discharge port;
during coring, the connecting bolt is taken out from the threaded hole, the coring pipe and the drill bit steel body are detached, the connector at the top end of the coring pipe is taken down, the threaded sleeve is connected to the top end of the coring pipe in a threaded manner, a group of second assembling pipes are sleeved outside the protruding pipe at the top end of the first assembling pipe through the accommodating groove, then the second assembling pipe is rotated to connect the connecting block between the clamping block and the top end of the first assembling pipe in an interference manner, after the installation is finished, the side connecting teeth of the second assembling pipe and the side connecting teeth of the first assembling pipe are in the same vertical direction, the side handle is shaken to drive the rotating handle to rotate, the rotating handle synchronously drives the connecting gear to rotate through the linkage rod after rotating, after the connecting gear rotates, the side connecting teeth drive the first assembling pipe and the second assembling pipe to move towards the core taking pipe, and when the first assembling pipe moves, the rock-soil core is taken out from the core taking pipe through the push plate.
The invention has the beneficial effects that:
1. in the invention, a coring pipe is arranged at the top end of a drill steel body, a side ring is fixedly connected at the top end of the side surface of the coring pipe, a threaded sleeve is in threaded connection with the top end of the coring pipe, a circular groove is formed in the drill steel body, a first separating cylinder is fixedly connected in the circular groove, a water flowing groove is formed between the first separating cylinder and the circular groove, a coring groove is formed in the first separating cylinder, a plurality of feeding grooves communicated with the outside are formed in the bottom end of the drill steel body, a plurality of water discharging grooves are formed in one side of the bottom end of the drill steel body close to the feeding grooves, the upper ends of the feeding grooves and the water discharging grooves are respectively communicated with the coring groove and the water flowing groove, and a separating pipe is welded at the bottom end of the water discharging groove. Thereby can prevent when digging a well, the problem of dislocation or skidding appears between two sets of components, the inside of coring pipe and the drill bit steel body is separated through separating a section of thick bamboo, it is regional with the core is got to separate the internal region, the position that the section of thick bamboo is connected in coring pipe and the drill bit steel body is provided with the reducing and separates a section of thick bamboo, can increase the regional leakproofness of rivers, and improve the quality that supplies water, the inside of simultaneously going out the basin is provided with separates the pipe, can prevent that great ground can get into out in the basin.
2. The outer surface of the threaded sleeve is fixedly connected with a reinforcing frame, the upper surface of the reinforcing frame is fixedly connected with a supporting frame, one side of the supporting frame is rotatably connected with a rotating device, the interior of the supporting frame is slidably connected with a material pushing pipe, the bottom end of the material pushing pipe extends to the interior of the core taking pipe, the rotating device comprises a connecting gear and a linkage rod, the connecting gear is rotatably connected to the interior of the mounting groove, the linkage rod is rotatably connected with the base plate, one end of the linkage rod is fixedly connected with the connecting gear, the other end of the linkage rod extends to the outer side of the base plate, one end of the linkage rod, which is positioned on the outer side of the base plate, is fixedly connected with a rotating handle, the side surface of the rotating handle is rotatably connected with a side handle, the core taking pipe in the invention is matched with core taking equipment, so that a, thereby can push away the push pedal high-speed migration to coring intraduct, push away the side of material pipe simultaneously and connect the tooth and be connected with the connecting gear of rotating the ware, the rotating the ware can rotate fast and connect the gear through changeing handle and side handle, simple structure conveniently controls, can reduce staff's intensity of labour.
Drawings
The invention will be further described with reference to the accompanying drawings.
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a cross-sectional view of a steel body of the drill bit of the present invention;
FIG. 3 is a schematic view of the distribution of the spacer tube according to the present invention;
FIG. 4 is a schematic view of an assembly structure of a drill steel body and a coring pipe according to the present invention;
FIG. 5 is a partial cross-sectional view of the core barrel of the present invention;
FIG. 6 is a top cross-sectional view of the support bracket and rotator of the present invention;
fig. 7 is an assembly structure diagram of the material pushing pipe in the invention.
In the figure: 1. a drill steel body; 2. a fin; 3. a chip groove; 4. a diamond compact; 5. taking a core pipe; 6. a side ring; 7. a threaded sleeve; 8. a reinforcing frame; 9. a support frame; 10. a rotator; 11. pushing the material pipe; 12. a launder; 13. a coring groove; 14. a feed chute; 15. a water outlet groove; 16. separating the tube; 17. a first partition cylinder; 18. a raised block; 19. a connecting pipe; 20. a threaded hole; 21. a groove is embedded; 22. a connecting bolt; 23. a second partition cylinder; 24. a variable-diameter partition cylinder; 25. a reducing groove; 26. a slag discharge port; 91. a substrate; 92. reinforcing the pipe; 101. a connecting gear; 102. turning a handle; 103. a linkage rod; 104. a side grip; 111. a first assembly tube; 112. a second assembly tube; 113. pushing the plate; 114. a side connecting tooth; 115. a raised tube; 116. a clamping block; 117. a receiving groove; 118. and (4) connecting the blocks.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-3, a combined PDC drill bit for drilling comprises a drill bit steel body 1, wherein a plurality of fins 2 are fixedly connected to the bottom end of the side surface of the drill bit steel body 1, chip discharge grooves 3 are formed between adjacent fins 2, diamond composite sheets 4 are fixedly connected to the side surfaces of the fins 2, a core taking pipe 5 is installed at the top end of the drill bit steel body 1, the core taking pipe 5 is formed by connecting a plurality of pipelines by screw threads, a side ring 6 is fixedly connected to the top end of the side surface of the core taking pipe 5, a threaded sleeve 7 is connected to the top end of the core taking pipe 5 by screw threads, a plurality of slag discharge ports 26 communicated with an inner cavity are formed in the side surface of the core taking pipe 5, the bottom end of the threaded sleeve 7 is tightly attached to the upper side of the side ring 6, a reinforcing frame 8 is fixedly connected to the outer surface of the threaded sleeve 7, a support frame 9 is, a material pushing pipe 11 is connected inside the supporting frame 9 in a sliding mode, and the bottom end of the material pushing pipe 11 extends into the core taking pipe 5;
the round groove is formed in the drill steel body 1, a first separating cylinder 17 is fixedly connected to the inside of the round groove, a water flowing groove 12 is formed between the first separating cylinder 17 and the round groove, a coring groove 13 is formed in the first separating cylinder 17, a plurality of feeding grooves 14 communicated with the outside are formed in the bottom end of the drill steel body 1, a plurality of water outlet grooves 15 are formed in one side, close to the feeding groove 14, of the bottom end of the drill steel body 1, the upper ends of the feeding grooves 14 and the water outlet grooves 15 are respectively communicated with the coring groove 13 and the water flowing groove 12, separating pipes 16 are welded at the bottom end of the water outlet grooves 15, the feeding grooves 14 are composed of two groups of inner grooves, an included angle between the two groups of inner grooves is 135 degrees, the feeding grooves 14 are divided into two sections, the entering rock soil can be further crushed, and the diameter of the rock soil.
Referring to fig. 4, a connecting pipe 19 is fixedly connected to the upper surface of the drill steel body 1, the structure inside the connecting pipe 19 is the same as that inside the circular groove, the inside of the connecting pipe 19 is also divided into a water flowing groove 12 and a coring groove 13 by a first separating cylinder 17, a plurality of threaded holes 20 are formed in the side surfaces of the connecting pipe 19 and the coring pipe 5, the coring pipe 5 is in threaded connection with the threaded holes 20 of the connecting pipe 19 through a connecting bolt 22, a plurality of protruding blocks 18 are fixedly connected to the side surface of the top end of the drill steel body 1, a plurality of embedded grooves 21 are formed in the bottom end of the side surface of the coring pipe 5, the protruding blocks 18 are embedded into the embedded grooves 21, the protruding blocks 18 are tightly attached to the embedded grooves 21, and the protruding blocks 18 and the embedded grooves 21 can prevent the drill steel body 1 and the coring pipe 5 from sliding.
Referring to fig. 5, a reducing groove 25 is formed at the bottom end inside the core taking tube 5, the connecting tube 19 is embedded inside the reducing groove 25, the side surface of the connecting tube 19 is tightly attached to the inner wall of the reducing groove 25, a second separating tube 23 is fixed on the upper side of the inside of the core taking tube 5, which is close to the reducing groove 25, the bottom end of the second separating tube 23 is fixedly connected with a reducing separating tube 24, the reducing separating tube 24 is embedded inside the water flowing channel 12, the bottom end of the second separating tube 23 is tightly attached to the top end of the first separating tube 17, the side surface of the reducing separating tube 24 is tightly attached to the inner wall of the first separating tube 17, the reducing separating tube 24 can protect the connecting portion of the first separating tube 17 and the second separating tube 23, the first separating tube 17 and the second separating tube 23 are prevented from being dislocated, meanwhile, the connecting portion of the two separating tubes is sealed, and the quality of water supply.
As shown in fig. 6, the supporting frame 9 includes a substrate 91, a reinforcing tube 92 is fixedly connected to the inside of the substrate 91, a mounting groove is formed in one side of the substrate 91 close to the reinforcing tube 92, a notch is formed in one side of the reinforcing tube 92 facing the mounting groove, the mounting groove is communicated with the notch, the rotator 10 includes a connecting gear 101 and a linkage rod 103, the connecting gear 101 is rotatably connected to the inside of the mounting groove, the linkage rod 103 is rotatably connected to the substrate 91, one end of the linkage rod 103 is fixedly connected to the connecting gear 101, the other end of the linkage rod 103 extends to the outside of the substrate 91, a rotating handle 102 is fixedly connected to one end of the linkage rod 103 located outside the substrate 91, a side handle 104 is rotatably connected to a side surface of the rotating handle 102, and the connecting gear 101 can be driven to rotate by swinging.
Referring to fig. 7, the material pushing pipe 11 includes a set of first assembling pipes 111 and a plurality of sets of second assembling pipes 112, side connecting teeth 114 are fixedly disposed on side surfaces of the first assembling pipes 111 and the second assembling pipes 112, a width of the side handle 104 is smaller than widths of the mounting groove and the notch, the connecting gear 101 is engaged with the side connecting teeth 114, a push plate 113 is fixedly connected to a bottom end of the first assembling pipe 111, a protruding pipe 115 is fixedly connected to top ends of the first assembling pipe 111 and the second assembling pipe 112, clamping blocks 116 are fixedly connected to both sides of the protruding pipe 115, a clamping groove is formed between the clamping block 116 and a top end of the assembling pipe, the clamping blocks 116 are obliquely distributed on the side surface of the protruding pipe 115, a receiving groove 117 is formed at a bottom end of the second assembling pipe 112, connecting blocks 118 are fixedly connected to both sides of an inner portion of the receiving groove 117, the connecting blocks 118 can rotate into the clamping groove by rotation, and after the rotation is completed, the side coupling teeth 114 of adjacent assembling tubes may be in the same vertical direction.
The working principle of the invention comprises the following embodiments:
example 1
The core taking pipe 5 is sleeved on the upper side of the drill bit steel body 1, when the core taking pipe is sleeved, the convex block 18 of the drill bit steel body 1 is embedded into the embedding groove 21 of the core taking pipe 5, then the drill bit steel body 1 and the core taking pipe 5 are fixed through the threaded hole 20 by using the connecting bolt 22, after the fixing is completed, the side face of the connecting pipe 19 is attached to the inner wall of the reducing groove 25 in the core taking pipe 5, meanwhile, the reducing partition cylinder 24 is embedded into the flowing water groove 12, the connecting part of the first partition cylinder 17 and the second partition cylinder 23 is sealed by the reducing partition cylinder 24, a connector is connected with the top end of the core taking pipe 5 in a threaded mode, and the connector is assembled with the output end of driving equipment;
during drilling, broken rock soil enters the interior of the drill bit from the feeding groove 14, the rock soil is further broken when passing through the bent part of the feeding groove 14, the rock soil can be accumulated in the coring groove 13 after passing through the feeding groove 14, the rock soil firstly entering the coring groove 13 is jacked up to enter the coring pipe 5 along with the advance of the drill bit, finally the broken rock soil is discharged out of the drill bit and the pipeline from the slag discharge port 26, when the drill bit advances, water flow can be discharged through the water flowing groove 12 and the water outlet groove 15, and after the rock soil enters the feeding groove 14, the rock soil can be further broken after passing through the bent part of the feeding groove 14;
when coring, the coring pipe 5 and a driving device are detached, then the connector is taken down from the top of the coring pipe 5, the drill bit steel body 1 and the coring pipe 5 are obliquely arranged at an angle of 45 degrees, the discharge end of the coring pipe 5 is 30cm away from the ground, then the side surface of the coring pipe 5 is beaten by a hammer, and when a sample slides down from the coring pipe 5, the drill bit steel body 1 and the coring pipe 5 are horizontally moved to tile the sample.
Example 2
Sleeving the coring pipe 5 on the upper side of the drill bit steel body 1, embedding the convex block 18 of the drill bit steel body 1 into the embedding groove 21 of the coring pipe 5 during sleeving, then fixing the drill bit steel body 1 and the coring pipe 5 through the threaded hole 20 by using the connecting bolt 22, after the fixing is completed, attaching the side surface of the connecting pipe 19 to the inner wall of the reducing groove 25 in the coring pipe 5, simultaneously embedding the reducing partition cylinder 24 into the water flowing groove 12, sealing the connecting part of the first partition cylinder 17 and the second partition cylinder 23 by the reducing partition cylinder 24, connecting a connector to the top end of the coring pipe 5 through threads, and assembling the connector with the output end of the driving device;
during drilling, broken rock soil enters the interior of the drill bit from the feeding groove 14, the rock soil is further broken when passing through the bent part of the feeding groove 14, the rock soil can be accumulated in the coring groove 13 after passing through the feeding groove 14, the rock soil firstly entering the coring groove 13 is jacked up to enter the coring pipe 5 along with the advance of the drill bit, finally the broken rock soil is discharged out of the drill bit and the pipeline from the slag discharge port 26, when the drill bit advances, water flow can be discharged through the water flowing groove 12 and the water outlet groove 15, and after the rock soil enters the feeding groove 14, the rock soil can be further broken after passing through the bent part of the feeding groove 14;
during coring, the connecting bolt 22 is taken out of the threaded hole 20, the coring pipe 5 and the drill steel body 1 are detached, the connector at the top end of the coring pipe 5 is taken down, the threaded sleeve 7 is connected to the top end of the coring pipe 5 in a threaded manner, a group of second assembling pipes 112 are sleeved outside the protruding pipe 115 at the top end of the first assembling pipe 111 through the accommodating groove 117, then the second assembling pipes 112 are rotated, the connecting block 118 is connected between the clamping block 116 and the top end of the first assembling pipe 111 in an interference manner, after the installation is completed, the side connecting teeth 114 of the second assembling pipes 112 and the side connecting teeth 114 of the first assembling pipe 111 are in the same vertical direction, the coring pipe 5 is placed to be horizontal, the side handle 104 is shaken, the side handle 104 drives the rotating handle 102 to rotate, the rotating handle 102 synchronously drives the connecting gear 101 to rotate through the linkage rod 103, after the connecting gear 101 rotates, the first assembling pipe 111 and the second assembling pipe 112 are driven to move towards the coring pipe 5 through the side connecting teeth 114, when moving, the first assembling pipe 111 takes out the rock core from the coring pipe 5 through the push plate 113.
In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The foregoing is illustrative and explanatory only and is not intended to be exhaustive or to limit the invention to the precise embodiments described, and various modifications, additions, and substitutions may be made by those skilled in the art without departing from the scope of the invention or exceeding the scope of the claims.
Claims (8)
1. The utility model provides a combination formula PDC drill bit that creeps into, includes the drill bit steel body (1), a plurality of fin (2) of bottom fixedly connected with side of drill bit steel body (1), it is adjacent be formed with chip groove (3) between fin (2), and the equal fixedly connected with diamond compact piece (4) in side of fin (2), its characterized in that, core tube (5) is installed on the top of drill bit steel body (1), the top fixedly connected with side ring (6) in core tube (5) side, and the top threaded connection of core tube (5) has thread bush (7), a plurality of slag discharge opening (26) that communicate with the inner chamber are seted up to the downside that core tube (5) side is close to side ring (6), the upside in side ring (6) is hugged closely to the bottom of thread bush (7), the fixed surface of thread bush (7) is connected with reinforcing frame (8), the upper surface of the reinforcing frame (8) is fixedly connected with a supporting frame (9), a material pushing pipe (11) is connected to the inside of the supporting frame (9) in a sliding mode, the bottom end of the material pushing pipe (11) extends to the inside of the core taking pipe (5), and a rotator (10) used for pushing the material pushing pipe (11) to move along the inside of the core taking pipe (5) is rotatably connected to one side of the supporting frame (9);
the circular slot has been seted up to the inside of drill bit steel body (1), and the inside fixedly connected with of circular slot separates a section of thick bamboo (17) first, it is first to separate to be formed with tye (12) between a section of thick bamboo (17) and the circular slot, and first separates that a section of thick bamboo (17) is inside to be formed with core groove (13), feed chute (14) of a plurality of and outside intercommunication are seted up to the inside of drill bit steel body (1) bottom, and drill bit steel body (1) bottom is inside to be close to one side of feed chute (14) and seted up a plurality of outlet trough (15), the upper end of feed chute (14) and outlet trough (15) communicates with core groove (13) and tye (12) respectively, the bottom welding of outlet trough (15) has at a distance from pipe (16).
2. The combined PDC drill bit for drilling according to claim 1, wherein a connecting pipe (19) is fixedly connected to the upper surface of the drill steel body (1), the structure inside the connecting pipe (19) is the same as that inside the circular groove, a plurality of threaded holes (20) are formed in the side surfaces of the connecting pipe (19) and the coring pipe (5), the coring pipe (5) is in threaded connection with the threaded holes (20) of the connecting pipe (19) through a connecting bolt (22), a plurality of protruding blocks (18) are fixedly connected to the side surface of the top end of the drill steel body (1), a plurality of embedded grooves (21) are formed in the bottom end of the side surface of the coring pipe (5), the protruding blocks (18) are embedded into the embedded grooves (21), and the protruding blocks (18) are tightly attached to the embedded grooves (21).
3. The combined PDC drill bit for drilling according to claim 2, wherein a reducing groove (25) is formed in the bottom end of the inside of the coring pipe (5), the connecting pipe (19) is embedded in the reducing groove (25), the side face of the connecting pipe (19) is tightly attached to the inner wall of the reducing groove (25), a second separation barrel (23) is fixed on the upper side, close to the reducing groove (25), of the inside of the coring pipe (5), the bottom end of the second separation barrel (23) is fixedly connected with a reducing separation barrel (24), the reducing separation barrel (24) is embedded in the flowing water groove (12), the bottom end of the second separation barrel (23) is tightly attached to the top end of the first separation barrel (17), and the side face of the reducing separation barrel (24) is tightly attached to the inner wall of the first separation barrel (17).
4. The combined PDC drill bit for drilling according to claim 1, wherein the support frame (9) comprises a base plate (91), a reinforcing tube (92) is fixedly connected to the inside of the base plate (91), an installation groove is formed in one side, close to the reinforcing tube (92), of the base plate (91), a notch is formed in one side, facing the installation groove, of the reinforcing tube (92), and the installation groove is communicated with the notch.
5. The combined PDC drill bit for drilling according to claim 4, wherein the rotator (10) comprises a connecting gear (101) and a linkage rod (103), the connecting gear (101) is rotatably connected inside the mounting groove, the linkage rod (103) is rotatably connected with the substrate (91), one end of the linkage rod (103) is fixedly connected with the connecting gear (101), the other end of the linkage rod (103) extends to the outer side of the substrate (91), one end of the linkage rod (103) located on the outer side of the substrate (91) is fixedly connected with a rotating handle (102), and the side surface of the rotating handle (102) is rotatably connected with a side handle (104).
6. The combined PDC drill bit for drilling according to claim 5, wherein the material pushing pipe (11) comprises a first assembling pipe (111) and a plurality of groups of second assembling pipes (112), side connecting teeth (114) are fixedly arranged on the side surfaces of the first assembling pipe (111) and the second assembling pipes (112), the width of the side handle (104) is smaller than the width of the mounting groove and the gap, and the connecting gear (101) is meshed and connected with the side connecting teeth (114).
7. The combined PDC drill bit for drilling according to claim 6, wherein a push plate (113) is fixedly connected to the bottom end of the first assembling pipe (111), a protruding pipe (115) is fixedly connected to the top ends of the first assembling pipe (111) and the second assembling pipe (112), clamping blocks (116) are fixedly connected to two sides of the protruding pipe (115), the clamping blocks (116) are obliquely distributed on the side face of the protruding pipe (115), a containing groove (117) is formed in the bottom end of the second assembling pipe (112), and connecting blocks (118) are fixedly connected to two sides of the inside of the containing groove (117).
8. A combined PDC drill bit for drilling according to claim 1 wherein the feed flutes (14) are comprised of two sets of internal flutes, the angle between the two sets of internal flutes being between 120 ° and 160 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011235915.2A CN112096295B (en) | 2020-11-09 | 2020-11-09 | Combined PDC drill bit for drilling and using method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011235915.2A CN112096295B (en) | 2020-11-09 | 2020-11-09 | Combined PDC drill bit for drilling and using method thereof |
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| Publication Number | Publication Date |
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| CN112096295A CN112096295A (en) | 2020-12-18 |
| CN112096295B true CN112096295B (en) | 2021-01-26 |
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| CN202011235915.2A Active CN112096295B (en) | 2020-11-09 | 2020-11-09 | Combined PDC drill bit for drilling and using method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112798329B (en) * | 2021-02-11 | 2022-09-06 | 广信检测认证集团有限公司 | Geotechnical engineering detects sampling device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2136323Y (en) * | 1992-06-24 | 1993-06-16 | 胜利石油管理局钻井工艺研究院 | Pdc sealed coring bit |
| CN2623867Y (en) * | 2003-06-06 | 2004-07-07 | 长沙矿冶研究院 | Single-tube core drill |
| CN202483455U (en) * | 2012-04-01 | 2012-10-10 | 北京金宝顺福石油技术开发有限公司 | Coring bit with multiple scrapers |
| CN205025400U (en) * | 2015-10-08 | 2016-02-10 | 吉林大学 | Ice -bound pressurize corer of electronic compression direct -cooled formula of evaporation |
| JP6725128B2 (en) * | 2016-07-14 | 2020-07-15 | 住鉱資源開発株式会社 | Drilling system and drilling method |
| CN210217659U (en) * | 2019-08-01 | 2020-03-31 | 重庆渝交机电设备有限公司 | Drilling device |
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